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Finding the Third Proportional to 6,687 and 11,835

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Solution

The third proportional to 6,687 and 11,835 is: 20,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687 : 11,835 = 11,835 : x
  2. Step 2: Convert to fraction form
    6,687/11,835 = 11,835/x
  3. Step 3: Cross multiply
    6,687x = 11,835 × 11,835
  4. Step 4: Simplify right side
    6,687x = 140,067,225
  5. Step 5: Solve for x
    x = 140,067,225/6,687
  6. Step 6: Final answer
    x = 20,946.20

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.